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TI-2026-11124 Aliases CVE-2026-13075GHSA-2xr2-6gf6-vqjx

$rankFusion and $scoreFusion Unbounded Memory Allocation During Error Suggestion Generation

Priority LOW 32CWE-770Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-770.

Summary

An authenticated user can cause the mongod process to be terminated by the operating system under memory pressure via the $rankFusion and $scoreFusion aggregation stages. The issue originates in the server's error-handling path and requires the ability to run aggregation queries.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0042 36th percentileScored 2026-11-07
Fix Fixed MongoDB Server (MongoDB): 8.2.12, 8.3.7

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MongoDBMongoDB Server8.2.0 to before 8.2.12; 8.3.0 to before 8.3.78.2.12, 8.3.7Patch availableCNA
  • MongoDB Server VendorMongoDB Affected 8.2.0 to before 8.2.12; 8.3.0 to before 8.3.7 Fixed in 8.2.12, 8.3.7 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*8.2.0 to before 8.2.12; 8.3.0 to before 8.3.7VulnerableMongoDB
  • cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:* Versions 8.2.0 to before 8.2.12; 8.3.0 to before 8.3.7 Vulnerable ·MongoDB

Remediation

  • Fix · CNA MongoDB Server (MongoDB) Fixed in 8.2.12, 8.3.7

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    MongoDB Server 8.2.12, 8.3.7

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2026-11112 libmongocrypt Improper Input Validation Leading to Process TerminationPriority LOW 24

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-13075
  2. 2026-10-03 Alias added: GHSA-2xr2-6gf6-vqjx

References

  • TI-2025-13542 Zlib compressed protocol header length confusion may allow memory read KEVCVSS 4.0HIGH 8.7
  • TI-2013-01669 MongoDB before 2.0.9 and 2.2.x before 2.2.4 does not properly validate requests to the… CVSS 2.0MEDIUM 6.0
  • TI-2026-56639 Uncontrolled Resource Consumption in MongoDB Sharded Cluster Router Allows Unauthenticated Denial of Service CVSS 4.0HIGH 8.7
  • TI-2026-56628 Reachable assertion in MongoDB Server CVSS 4.0HIGH 8.7
  • TI-2026-15322 Improper Input Validation in MongoDB Aggregation Framework Allows Unauthenticated Denial of Service on mongos CVSS 4.0HIGH 8.7
  • TI-2026-08537 Unbounded recursion in BSONColumn interleaved-reference causes pre-auth stack overflow CVSS 4.0HIGH 8.7
See all 187 →

Sources